package com.hyq.visitor;
/**
* @ClassName: Element 
* @Description: 抽象元素
* @author Janus
 */
public abstract class Element {
	/*
	 *定义业务逻辑
	 */
	public abstract void doSomething();
	/*
	 * 允许谁来访问
	 */
	public abstract void accept(IVisitor visitor);
}
